Imaging device having a plurality of electrodes with a photoelectric conversion layer forming a photoelectric conversion unit

An electronic apparatus, comprising:

• an optical lens;
• a light detecting device, comprising:
• a substrate comprising a first surface and a second surface, the first surface being a light incident surface of the substrate and the second surface being opposite to the first surface;
• a first photoelectric conversion unit disposed above the first surface of the substrate, the first photoelectric conversion unit comprising:
• a first electrode;
• a photoelectric conversion layer;
• a second electrode;
• a third electrode;
• a fourth electrode;
• and
• an insulating layer,
• wherein the photoelectric conversion layer is disposed between the second electrode and the first, third, and fourth electrodes,
• wherein the first, third, and fourth electrodes are disposed between the photoelectric conversion layer and the first surface of the substrate,
• wherein, in a plan view, at least a part of the fourth electrode is disposed between the first electrode and the third electrode,
• wherein a first region of the insulating layer is disposed between the photoelectric conversion layer and the third electrode,
• wherein a second region of the insulating layer is disposed between the photoelectric conversion layer and the part of the fourth electrode,
• wherein a third region of the insulating layer is disposed between the first electrode and the fourth electrode, and
• wherein a fourth region of the insulating layer is disposed between the third electrode and the fourth electrode;
• and
• a semiconductor region disposed at the second surface of the substrate,
• wherein the semiconductor region is electrically coupled to the first electrode;
• a driving circuitry;
• and
• a signal processor.

A light detecting device, comprising:

• a substrate comprising a first surface and a second surface, the first surface being a light incident surface of the substrate and the second surface being opposite to the first surface;
• and
• a first photoelectric conversion unit disposed above the first surface of the substrate, the first photoelectric conversion unit comprising:
• a first electrode;
• a photoelectric conversion layer;
• a second electrode;
• a third electrode;
• a fourth electrode;
• and
• an insulating layer;
• and
• wherein the photoelectric conversion layer is disposed between the second electrode and the first, third, and fourth electrodes,
• wherein the first, third, and fourth electrodes are disposed between the photoelectric conversion layer and the first surface of the substrate,
• wherein, in a plan view, at least a part of the fourth electrode is disposed between the first electrode and the third electrode,
• wherein a first region of the insulating layer is disposed between the photoelectric conversion layer and the third electrode,
• wherein a second region of the insulating layer is disposed between the photoelectric conversion layer and the part of the fourth electrode,
• wherein a third region of the insulating layer is disposed between the first electrode and the fourth electrode,
• wherein a fourth region of the insulating layer is disposed between the third electrode and the fourth electrode, and
• wherein a voltage applied to the fourth electrode is less than a voltage applied to the third electrode during a charge storage period.